Yes it is possible for a woman to still bleed fromher period even if pregnant. This may happen one to two times after fertilization.
Yes you can.
I don't get it, but girls can't get girls pregnant, fullstop.
Only the first days when you bleed are considered really safe, so yes.
Some do, some don't.
Yes, it is not as common to get pregnant while on your period, but you still can get pregnant. Sperm can live inside a women for a few days and it is definitely possible.
If she was pregnant it would be highly unlikely for her to get her period, however if she wasn't pregnant she should still get her period like normal.
If a girl thinks she is pregnant that doesn't mean that she is pregnant. A woman cannot menstruate while she is pregnant, thus if she menstruates she obviously isn't pregnant even if she thinks otherwise - although women can bleed during pregnancy this is uncommon, and not menstruation.
Yes, all girls have periods. If you skip your period you are probably pregnant. Periods tell you that you are not pregnant.
Wow. If you're 14 you shouldn't even be pregnant. But no you cannot get your period. If you bleed at all, there's probably something wrong with your pregnancy. ..That or you may just be having a period and you're not even pregnant.